If you ever take an AI class the textbook will probably be his other book. This one's more fun, focused on implementation, and a little dated because it's all GOFAI. It'd be a terrible first Lisp book though; read Practical Common Lisp first if you're new to/rusty with Lisp.

I had a chance to slightly touch some AI technologies like perceptrons and neural networks during days at the university, but have never heard about GOFAI. As I understand it's human-friendly approaches like decision tree?